Evidence map›Paper›PMID 41820697›Full record

ArticleInternational journal of colorectal disease2026

Robot-assisted surgery for colorectal cancer using Weigao versus da Vinci systems: a retrospective comparative study.

Linxi Lv, Jingwei Zheng, Ang Shi, Jiani Lu, Huaiqing Zhi, Zhixuan Jiang, Weiteng Zhang, Xinxin Yang, Xiaodong Chen, Qiantong Dong and 2 more

Abstract readComparative Study
PubMed Full text at PMC Publisher
In one paragraph

Article in International journal of colorectal disease, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Linxi Lv *Department of Gastrointestinal Surgery, First Affiliated Hospital, Wenzhou Medical University, Building 4, Nanbaixiang Street, Wenzhou, 325000, China.
Jingwei Zheng *Department of Gastrointestinal Surgery, First Affiliated Hospital, Wenzhou Medical University, Building 4, Nanbaixiang Street, Wenzhou, 325000, China.
Ang Shi *Department of Gastrointestinal Surgery, First Affiliated Hospital, Wenzhou Medical University, Building 4, Nanbaixiang Street, Wenzhou, 325000, China.
Jiani LuDepartment of Gastrointestinal Surgery, First Affiliated Hospital, Wenzhou Medical University, Building 4, Nanbaixiang Street, Wenzhou, 325000, China.
Huaiqing ZhiDepartment of Gastrointestinal Surgery, First Affiliated Hospital, Wenzhou Medical University, Building 4, Nanbaixiang Street, Wenzhou, 325000, China.
Zhixuan JiangDepartment of Gastrointestinal Surgery, First Affiliated Hospital, Wenzhou Medical University, Building 4, Nanbaixiang Street, Wenzhou, 325000, China.
Weiteng ZhangDepartment of Gastrointestinal Surgery, First Affiliated Hospital, Wenzhou Medical University, Building 4, Nanbaixiang Street, Wenzhou, 325000, China.
Xinxin YangDepartment of Gastrointestinal Surgery, First Affiliated Hospital, Wenzhou Medical University, Building 4, Nanbaixiang Street, Wenzhou, 325000, China.
Xiaodong ChenDepartment of Gastrointestinal Surgery, First Affiliated Hospital, Wenzhou Medical University, Building 4, Nanbaixiang Street, Wenzhou, 325000, China. 15167797063@163.com.
Qiantong DongDepartment of Gastrointestinal Surgery, First Affiliated Hospital, Wenzhou Medical University, Building 4, Nanbaixiang Street, Wenzhou, 325000, China. dongqt2021@wmu.edu.cn.
Xian ShenDepartment of Gastrointestinal Surgery, First Affiliated Hospital, Wenzhou Medical University, Building 4, Nanbaixiang Street, Wenzhou, 325000, China. shenxian@wmu.edu.cn.
Xiaojiao RuanDepartment of Gastrointestinal Surgery, First Affiliated Hospital, Wenzhou Medical University, Building 4, Nanbaixiang Street, Wenzhou, 325000, China. ruanxiaojiao@wmu.edu.cn.

Funding

National Key R&D Program of China 2023YFC2413402
6 · The paper itself

Abstract

backgroundRobotic surgery is a well-validated treatment option for colorectal cancer (CRC). We aimed to evaluate the efficacy and safety of the Weigao (WG) robotic system compared with those of the da Vinci (DV) platform for the surgical resection of CRC.

methodWe retrospectively analyzed patients with stage I-III CRC who underwent robotic CRC resection using the Weigao or da Vinci Surgical System. Statistical analysis of perioperative clinical data, including preoperative, intraoperative, and postoperative parameters was conducted.

resultA total of 103 patients were included and divided into the WG (n = 65) and DV (n = 38) groups. All patients achieved surgical success, and there were no significant differences in preoperative baseline characteristics. However, the WG group demonstrated a significantly longer operative time. Patients in the WG group experienced a shorter time to first flatus and a low incidence of postoperative deep vein thrombosis. Notably, the total hospitalization cost was significantly lower when the Weigao Surgical System was used.

conclusionThis study demonstrated that the Weigao robotic system was comparable to the da Vinci system in terms of safety and efficacy for CRC surgery. Moreover, the total hospitalization cost was significantly reduced with the Weigao Surgical System, highlighting its potential as a cost-effective surgical option.

Indexed as

Colorectal NeoplasmsColorectal Surgical ProceduresPostoperative ComplicationsRobotic Surgical ProceduresVenous ThrombosisAgedFemaleHospitalizationHumansIncidenceMaleMiddle AgedNeoplasm StagingOperative TimeRetrospective StudiesColorectal cancerDa Vinci robotic systemEfficacySafetyWeigao robotic system

Identifiers

PMID41820697
PMCPMC12987771

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.